RFID and radio frequency

Frequency spectrum and applications

In RFID system different frequency spectrums are allocated for the different applications as the following articles.

Frequency and communication range

In RFID, the most appropriate frequency spectrums are allocated for different applications and communication ranges. The most used frequency bands for RFID system are the following four frequencies.

Low frequency（LF）：< 135ｋHz

High frequency（HF)：13.56MHz

UHF：860～960MHz

Microwave：2.45GHz

Low Frequency（LF）：< 135ｋHz

Electromagnetic induction method

Very short communication range

Low effects from water intervention

Because of the above features, this type is mainly used for payment system at the restarurant or lift chiket at a ski resort. In the restaurants, RF tags are embedded inside of plastic plates and a reader installed near the casher reads data from the tags when cheked out.